blob: 64d13cb8b9711e4798666e4cc74f22301aa8d4ca [file] [log] [blame]
// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "services/preferences/tracked/interceptable_pref_filter.h"
#include <utility>
#include "base/bind.h"
InterceptablePrefFilter::InterceptablePrefFilter() {}
InterceptablePrefFilter::~InterceptablePrefFilter() {}
void InterceptablePrefFilter::FilterOnLoad(
PostFilterOnLoadCallback post_filter_on_load_callback,
std::unique_ptr<base::DictionaryValue> pref_store_contents) {
if (filter_on_load_interceptor_.is_null()) {
FinalizeFilterOnLoad(std::move(post_filter_on_load_callback),
std::move(pref_store_contents), false);
} else {
// Note, in practice (in the implementation as it was in May 2014) it would
// be okay to pass an unretained |this| pointer below, but in order to avoid
// having to augment the API everywhere to explicitly enforce the ownership
// model as it happens to currently be: make the relationship simpler by
// weakly binding the FinalizeFilterOnLoadCallback below to |this|.
FinalizeFilterOnLoadCallback finalize_filter_on_load(
base::BindOnce(&InterceptablePrefFilter::FinalizeFilterOnLoad,
AsWeakPtr(), std::move(post_filter_on_load_callback)));
std::move(filter_on_load_interceptor_)
.Run(std::move(finalize_filter_on_load),
std::move(pref_store_contents));
}
}
void InterceptablePrefFilter::InterceptNextFilterOnLoad(
FilterOnLoadInterceptor filter_on_load_interceptor) {
DCHECK(filter_on_load_interceptor_.is_null());
filter_on_load_interceptor_ = std::move(filter_on_load_interceptor);
}
void InterceptablePrefFilter::OnStoreDeletionFromDisk() {}